flap
n.— Note: Perhaps related to the noun meaning of flap, “a state of agitation; a panic.” «His face lit up when he talked about a “flap,” a term used to describe a large number of UFO reports, one March sometime in the late 1990s.» —“His eye is stuck on the sky” by Julia Spitz MetroWest Daily News (Framingham, Massachusetts) Oct. 7, 2007. (source: Double-Tongued Dictionary)
Further reading
The owner of a Berlin, Maryland, produce stand wants to know: When a customer is buying four ears of corn, should they say I have four corn or I have four ears of corn? Corn is a mass noun that can also be counted as a plural, just as we might say I...
Jane in Denver, Colorado, notes some people using the term an in front of a word beginning with a consonant, as if to emphasize that word by modifying it with the incorrect definite article. That may be what’s happening in this scene from the movie...
My parent’s generation, young adults in WWII, called fussing over something “getting into a flap over” it. Perhaps derives from “flapdoodle”?
Perhaps. You’re ahead of my note-adding, but I’ll add one to this catchword shortly.